85810389392 has 80 divisors (see below), whose sum is σ = 206537530752. Its totient is φ = 33629644800.

The previous prime is 85810389391. The next prime is 85810389433. The reversal of 85810389392 is 29398301858.

It is a super-2 number, since 2×85810389392² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (85810389391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119609 + ... + 431192.

Almost surely, 2^85810389392 is an apocalyptic number.

It is an amenable number.

85810389392 is an abundant number, since it is smaller than the sum of its proper divisors (120727141360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85810389392 is a wasteful number, since it uses less digits than its factorization.

85810389392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550936 (or 550930 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 85810389392 in words is "eighty-five billion, eight hundred ten million, three hundred eighty-nine thousand, three hundred ninety-two".